Device for adjusting the relation between music-sheets and trackers.



L. W. SOUTHGATB, DEVICE FOR ADJUSTING THE RELATION BETWEEN MUSIC SHEETSAND TBAGKERS.

APYLIUATION FILED FEB. 23,1909. 995 ,492, Patented June 20, 1911.

2 SHEETS-SHEET 1.

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LOUIS W. SOUTHGATE, 0F WORCESTER, MASSACHUSETTS, ASSIGNOR, BY'MESNE AS-SIGNMENTS, TO AUTO PNEUMATIC ACTION (10., OF NEW YORK, N. Y., A CORPORA-TION OF NEW YORK.

EEVIOE ADJUSTING THE RELATION BETWEEN IfiUSIC-SHEETS AND TRACKEBS.

Specification of Letters Patent. Patented J 111; 20, 1911.

Application filed February 23, 1909. Serial ,No. 479,417.

To all whom it may concern.

Be it known that I, LOUIS W. SOUTHGATE,

a citizen of the United States, residing at Worcester, in the county ofWorcester and State of Massachusetts, have invented a new anduseful'Device for Adjustin the Relation- Between Music-Sheets andrackers, of which the following is a specification. The object of thisinvention is to provide a jnew and improved mechanism for automaticallypreserving or keeping the musicsheet' in an -automatic player in propertracking position on the tracker.

To this end, the invent-ion consists in pro viding two trackingcontrolling openings arranged one at each end of the series ofnote-operating o eni s, outside of the normal track or pat of t emusic-sheet so that both tracking controlling openings will be uncoveredwhen the music-sheet is in normal position on the tracker, and inroviding an operating mechanism control ed by said tracking controllingopenings for restoring the normal relation between the tracker andmusic-sheet when the music-sheet moves sidewise out of proper positionand covers one of said tracking controlling openings.

into action when' the edge 0 By this arrangement, it will be noticedthat the distance between said twotracking controlling openings isgreater than the width of the music-sheet so that imperfections ornotches in the edge of 'the musicsheet 'normallywill' not act on thetracking-controlling openings, as themusic-sheet on y acts to bring-theoperating mechanism the musicsheet'comesgoverone of the trackingcontrolling openings. The lateral adjustment between 'the-music-sheetand tracker may beprovi'ded" for by moving either. the tracker or musics heetand any form of convenient opefat-i'n mechanism may be employedfor makin t e adjustment. a

- In" e=drawings, an arrangement is shown wherebyithef music-sheet isadjusted by "a pneumatically operating mechanism.

-Referii'rig' to the, drawings and 'in detail,

Figure new: front elevation .of enough of elevation of the adjustingcam. .Fig. 4 is a; sectional vie'w taken onthe line 4;4 oi -Figconnections extended 'to the.

the arts-to illustrate the invention.- Fig.)

Qei's pliin 'view-thereof. Fig. 3 is a, side 2, with the tracker.

partial sectional View similar to Fig. 4.111113.

crating a modification.

I lgig 5 is a sectional view taken on the line Referring to the drawingsand in detail M designates the music-spool, B the take-hp roll, Tthe'ztracker, N the note-operating openings in the tracker, and S themusic sheet, which parts may be arranged in any of the ustz'al mannerscommon. in instruments oi this class.

As shown, the left-hand spindle 0f the music spool is laced in aspring-pressed plunger 10 and t e right-hand end which is squared isfitted into the end of "a. lunger 11 which isarranged' to slidein aearin' and in -a bracket. The spring-presse plunger 10 normall tends tomove the mu The cam is operated by two neumatics P and P, the movablesides of'w ich are con v nected together by a link I. i The righthandpneumatic is-connee I cam by alink 12, bell-crank" 14 link 1.15,

lever 16, shaft- 17-, lever-'18, link 19 and lever 20 mounted on theShaft 21 which carries th'ecam 12. ranged that when the left-handedpneumatic P operates or collapses, the cam 12' will be moved toallow-the music's'pool to to operate the These connectionsare so ar-*move to the right under the influence of the I p s ringressed plunger 10and so -that'whefi .t e rig t-hand pneumatic P" operates" or colla ses,the cam 12 will force the music spoo M to the left.

"A'A designate tracking" controlling openin s which are arranged outsideof thonorma track of the music sheet'so'that they both W111 beuncovered" when the music "sheet is in normal position on 'thtrarcken'as shown in Fig; 1". These tracking control-j ling openings are shown as'arran ed 3i tracker but the may be arrange fat any jplace just-outsi eof the track o f'tlii'shelet and preferably between the music spool andthe ta'ke-up roll. The tracking controlling openin s are connected bypassages or tubes 22 an 23 to valve operating mechanisms which controlthe admission of the exhaust and 'air into the pne atics. These valvemechanisms are the sa e 'nd the one which controls the pneumatic isdetailed inFig.

4 and the description thereof applies to the Qt er'. p -Arranged in favalve box v which carries the pneumatic P is a diaphragm 24 under [whichthe passage 22 communicates. A

' small bleeding passage"25 is arrafn ed from saidpassa%l22 to the upperside 0 the diaphragm. iis diaphra has'exhaust or suction on the uppersur ace thereof and attached to thesame is a-valve26 whichnormallycloses an opening '27. to the wair. As the bleeding passage 25is small, the valve 26-will normally be kept in its raised'posi tionsolong as, the connection. 22 opens to the air which condition exists solong as the music sheet'does'not cover the tracking open ing A.Thi-Walve 26 controlling the opening 27 is arranged in acornpartmentwhich corinects by passage 28 to the space under a diaphragm 29'attached to which'are valves 30 and '31, which valves remain in theposition shown in .Fig 4, so long as the opening A in the trackerremains open and the -valve 26 in itsraised' position. {The exhaust isadmitted, above the diaphragm 29 through a passage-way 32. and arestricted or bleeding passage 320 connects the two sides of ,dia ragm291' 'l lie space above the two diap'hragmsfl l and 29 is connected by"a passage 33, so

long as theva'lve 26 remains 1i ","the-exhaust" acts on both sides ofthe dia ragm 29.and the valves 30 and"31 remain down.

valve 31 controls an openin 34 which extends tfo the atmosphere an the'.val ve 30 controls'a' passage '35 which extends back of a diaphragm361:0 which is attached a double Valve" 37 and 38, the valve 37 co6perat'- ing with a-"seat 39' and the valve seat 38 with a seat formed-inthe frame.- .So lo'ngas the L exhaust vfact-s at theleftof the diaphragm36,

the valve '37 is kept to its seat; 5

*40designates a passage-wayinto the pneumatic-P. j 1 41designates anexhaust pipe which is connectedto the chambers formed in the two'valvebo'xesa The operation'is as fol-lows So' long as 1-,He opening Ais uncovered, the parts" remain'li'nthe position shown in Fi' 4; When,

1..;.however the passage A is close the valve drop admitting air underdiaphragmopen valve 31 26 will 29 which will raise the same,

" admit air to the left ofthe dia hragm 3'6- and open valve 37 andclosejva ve 38 and thus admit suction into the pneumatic eBJvhichcollapse .the same and move the'i matic The i position. The samearrangement of valves 1s emgloyed in connection with the pneumatic ifthe music sheet wanders to the right, the openln A will be covered andthe pneu-t to the left to its normal position. Thus, so lon as the musicsheet remains in normal operate to move the music sheet and the partsare arranged so that position on the tracker between the two vopenings-A and A, the neumatics will not operate, but if the music sheetwanders 'in one direction-or the other, the covering u v of one or otherof the openings A orvA tion.

'restore the music sheet to itsnormalposi-' A modified form of valvemechanism is shown in Fig. 6. In this arrangement, the

passage'22 connects by an opening 42 above a diaphragm 43. Air isadmitted under the diaphragm by a restricted openin 44. The exhaust isconnected above the iaphragm by a restricted passage 45. The opening 42is made larger than the opening 45 so that when the,openinu A of thetracker is i1n-. covered, -air will flow throu h the opening 42' fasterthan it can Lescape t rough the small exhaust o nifig 45- and hence novacuum or suction Wlll beefiected above the diaphragm 43.- But whentheopeningA isclosed by the music" sheet, theexhaust' through theopening 45 will"then'.li'ft the diaphragm. .The diaphragm isconnected'by a stem 46 to operate" a hinge valve 47'which controls aport 48 controlling the admission of "air to a passage 35 which.operatesfidiaphr'agm 36 and parts 37 to 41 inclusive, arranged aspreviously described to control the" exhaust into the pneumatic P exceptthat in this ar rangement, the ,di'ap'ragm "36 has a small bleeding-opening 70 to allow .valve "37 normally 'to seat. This arrangement ocrates substantially as previousl describedflt being understood thatwhen this. modification is' used, one valve mechanism, such as' shownvin.F1g.- 6, is employed with the pneumatic P and a similar mechanis inconnection with the neumatic P.

T e principle of the valve mechanism 'is,

that so regulates t e same is .connected'to the atmosphere,-theatmosphere is admitted to the as the controlling opening which operatingpneumatic and so soon as the tracking controlling opemng is covered bythe music sheet, the exhaust is admitted to operate the pneumatic.

scribed may varied by a skilledmechanic without departing from thescope'of my in vention as expressed in the claims.

Havingth us fully described my invention,

. 12's?- 'The' arran ements herein shown and dewhat I claim and desireto secure by Let-- ters Patent is 1. In an autoinatieplayer, thecombination of a tracker having a series of noteoperati'ng' openings, atracking controlling opening for each'side of the music sheet, whichtracking controlling openings are arranged. so that both will beuncovered whenthe music sheet is in normal position on the tracker, andoperating mechanism controlled by sald tracking controlling openings forrestoring the normal relation between.

said two tracking controlling openings being greater than the Width ofthe music sheet, said tracking controlling openings be ing arranged sothat bothwill be uncovered whenthemusic sheetis in normal position onthe tracker, and operating mechanism controlled by said trackingcontrolling' openings for restoring the normal relation between thetracker and music sheet when the music sheet moves sidewise out ofproper position and covers one of said tracker controlling openings.

3. In, an automatic player, the combinetion of atracker having a seriesof noteoperating openings, a tracking controlling opening at each end ofthe series of note operating openings, which trackin contr0l 1mgopenings are arranged outsi e of the normal track of the music sheet sothat both will be uncovered when the music sheet 13 in normalposition-onthe tracker, and operati'n'g pneumatics for restoring the normalrelation between the tracker and music sheet when the music sheet movessidewise out of roper position and covers one of said trackingcontrolling openings.

4-. In an automatic player, the .combination of a tracker hav ng aseries of noteoperating openings, a trackingcontrollingopening at eachend of the series of noteoperatingopenings, which tracklng controllingopenings are arranged outslde of the normal track of the music sheet sothat 'both will be uncovered when the music sheet is in normal positionon the tracker, operating opening at eac pneumatics for restoring thenormal relation between the tracker and music sheet when the music sheetmoves sidewise out of proper position and covers one of said trackingcontrolling openings, and valve mechanisms actuated from said trackingcontrolling openings for admitting exhaust to said operating pneumatics.

5. In an automatic player, the combina tion of a tracker havinga seriesof note operating openings, a tracking controlling opening at each endof the series of noteoperating openings, which tracking controllingopenings are arranged outside of the normal track of the music sheet sothat both will be uncovered when the music sheet is in normal positionon the tracker, operating neumatics for restoring the normal relationetween the tracker and music sheet when the music sheet moves sidewise'out of proper position and covers one of said tracking controllingopenings, and valve mechanisms for admittmg exhaust to said neumatics,each of which valve mechanisms is controlled by a diaphragm acted uponone side by air passing through the controlling opening and on the otherside by the exhaust.

6. In an automatic player, the combination of a tracker having aseriesof noteoperating ope 'ngs, a tracking controlling end of theseries of note operating openings, whichtrackin controlling openings arearranged outsi e of the normal track of the music sheet so that bothwill be uncovered when the music sheet is in normal position on thetracker, operating pneumatics'for restoring the normal relation betiveenthe tracker and music sheet when the music sheet moves sidewise out ofproper position and covers one of said tracking controlling openings,and a valve mechanism for .each pneumatic com rising a valve connectedto control the a mission of exhaust into the pneumatic, a diaphragmoperating said valve, which diaphragm is controlled by exhaust on onesideand by air-f,rom the tracking controlling opening on the other,- anda bleeding or'restricted passage'connect ing the two sldes of thediaphragm.

In testimony whereof'I have hereunto set my hand, in the presence oftwosubscribing witnesses.

r LOUIS W. SOUTHGATE. Witnesses:

E. M.. ALLEN,

O. FORREST Wesson.

